Frequently asked questions.

What is JSONPath?

JSONPath is a query language for JSON inspired by XPath. Paths start with $ (root) and use . and [] to drill in. $.store.book[*].title returns every book title under store.book.

What is JMESPath?

JMESPath is another JSON query language, used by AWS CLI among others. It is more featureful than JSONPath — filters, projections, functions — and has a strict grammar.

Which should I use?

JSONPath if your team already knows XPath or if you want shorter expressions. JMESPath if you need transformations beyond extraction (pipes, functions, multi-select).

Can I use jq online here?

Yes. The jq tab runs the real jq (compiled to WebAssembly) entirely in your browser — type a filter like .users[].name and it evaluates instantly, with your JSON never uploaded to a server. jq is a JSONZen Pro feature; JSONPath and JMESPath are free.

Does my JSON leave my browser?

No. JSONPath, JMESPath, and jq all run in your browser. No server.

More JSON tools.

• FormatPretty-print JSON with line-accurate errors. Sort keys on demand.
• ValidateCheck a JSON document against a JSON Schema. Per-path error messages.
• MinifyStrip whitespace and shrink your JSON payload. Reports bytes saved.
• Tree ViewBrowse JSON as a collapsible tree. Drill into nested data without scrolling.
• Semantic DiffCompare two JSON files by structure. Per-path adds, removes, modifications.
• JSON Deep EqualityYes/no equivalence check between two JSON documents, with the first difference shown as a JSON Pointer.